The 6.6 x 6.6" Formatt Hitech Ultra Cinema Graduated ND Filter 6.6x6.6 3-Stopfrom Formatt Hitech Ultra Cinema Graduated ND Filter 6.6x6.6 3-Stopuses a rare Earth-mineral coating to create exceedingly neutral NDs. Soft-edge grads are versatile filters used to balance the luminosity of a bright sky with the terrain below. The soft edge makes it easy to place the filter in the scene, especially over undulating horizons (such as mountains). The filters are made from 4mm-thick Schott Superwite glass, and the multicoating is bonded in the middle to increase scratch resistance. Firecrest Filters are neutral across all spectrums, including UV, visible, and infrared.

Firecrest Ultra IRND are carbon-based IRND filters with hyper-neutral color balance which can be used for uniform near infrared filtration allowing your camera's color science to remain untouched. Ultra IRND are equally compatible with ARRI, RED, Blackmagic Design, Canon, Panasonic, and other modern digital cinema cameras allowing the image to be captured as the manufacturer intended.

4mm Cine Firecrest Ultra IRND have the same features of the popular 4mm Cine Firecrest ND. The 4mm Firecrest ND and 4mm Firecrest Ultra IRND both have identical optical performance with the engraving being the only difference.

0.9 Optical Density    Rare Earth Metal IRND Coating    4mm-Thick Schott Superwite Glass    Scratch and Water Resistant    Antireflective Edge Seal    Reduces Exposure in Select Areas    Lap and Polish Manufacturing Technique

Related Questions and Answers

Q: 1. Is this an 82mm filter? Can I use this on my 77mm Canon 100-500mm with the lens hood attached? (with the 77mm adapter)

A: PolarPro Helix Variable Neutral Density Filter (2 to 5 Stops) is not a 82 mm filter. The Helix Variable Neutral Density Filter from PolarPro is designed for the Helix magnetic filter system and provides an exposure reduction of 2 to 5 stops. Variable ND filters are not designed to be used with the lens hood attached and the front element has a different size than the filter thread.

Q: 2. How does this compare to the wide angle low profile filter that is about $40 cheaper? Which one is recommended for videography/filmmaking?

A: The wide angle version is meant for wide angle lenses to prevent vignetting. Otherwise, both versions have the same purpose in mind.

Q: 3. I think I have seen some VND's have a total size larger than its threading part, which ends up blocking the ability to mount a lens hood. Does the size of this filter prevent the mounting of a lens hood?

A: Most Variable ND filters have a larger outer diameter than the thread in size. Urth ND2-400 (1-8.6 Stop) Variable ND Lens Filter (58mm) has a front and mount thread of 58mm. However, the outer diameter of this filter is 62mm therefore if your lens hood is not wide enough it may not fit with this filter mounted on your lens.

Q: 4. Does this have the option to not use any ND, while keeping the filter in the adapter to avoid dust seeping into the hole?

A: You will need to add this clear filter to the drop in filter slot in the Canon EF RF filter adapter. This filter will make sure no dust gets in the camera. https://www.bhphotovideo.com/c/product/1434115-REG/canon_3444c001_drop_in_clear_filter_a.html

Q: 5. Will a standard 52mm Nikon lens cap fit on this polarizer? Thanks, Frank

A: Yes, a 52mm lens cap will fit on the Tiffen 52mm Digital HT filter.

Q: 6. Will a lens cap fit over this filter? And is it waterproof?

A: The filter will accept a 58mm lens cap. This filter is not waterproof.

Q: 7. Does the wheel have stops indicators? Or do we have to guess what stop we are at.

A: The NiSi Cinema True Color 1-5 Stop Variable Neutral Density Filter for C5 Matte Box (1 to 5-Stop) does not have stop indicators.

Q: 8. The specs say 101.6 x 101.6 mm. Will these fit in a 100mm filter holder?

A: Yes, these will fit in a 100mm filter holder.

Q: 9. Does it have hard stops?

A: It is smooth. Most variable ND filters are smooth so make the transition smoother in video.

Q: 10. Does this fit on a Canon RF 24-105mm L lens? Without touching the glass?

A: Yes it fits on any lens that has a 77mm filter thread such as the Canon RF 24-105mm f4 L lens.